5j1580 Thermotatic Bimetal Strip for Automatic Cprotection Switching

• Product Type: Strip
• Material: FeMn
• Carbon Content: Low Carbon
• PCD: -
• ET: -
• Hole: -
• Model NO.: 5J1580
• Stock: Yes
• Sample: Free
• OEM: Yes
• Surface: Bright
• Type: Soft
• Allows The Use of Temperature: -70~200
• Modulus of Elasticity: 113000
• Temperature Curvature: 39.0%±5%
• Linear Temperature: -20~150
• Transport Package: The Wooden Case
• Specification: discuss
• Trademark: HUONA
• Origin: Shanghai
• HS Code: 7225505000
• Production Capacity: 500 Ton/Month

Product Description

5J1580 Thermotatic Bimetal Strip For Automatic Cprotection Switching

Common Name: Truflex P675R, Chace 7500,Telcon200,  200)

A bimetallic strip is used to convert a temperature change into mechanical displacement. The strip consists of two strips of different metals which expand at different rates as they are heated, usually steel and copper, or in some cases steel and brass. The strips are joined together throughout their length by riveting, brazing or welding. The different expansions force the flat strip to bend one way if heated, and in the opposite direction if cooled below its initial temperature. The metal with the higher coefficient of thermal expansion is on the outer side of the curve when the strip is heated and on the inner side when cooled

The sideways displacement of the strip is much larger than the small lengthways expansion in either of the two metals. This effect is used in a range of mechanical and electrical devices. In some applications the bimetal strip is used in the flat form. In others, it is wrapped into a coil for compactness. The greater length of the coiled version gives improved sensitivity.

 Diagram of a bimetallic strip showing how the difference in thermal expansion in the two metals leads to a much larger sideways displacement of the strip

Composition

Grade	200
High expansion layer	Mn75Ni15Cu10
Low expansion layer	Ni36

 
Chemical composition(%)

Grade	C	Si	Mn	P	S	Ni	Cr	Cu	Fe
Ni36	≤0.05	≤0.3	≤0.6	≤0.02	≤0.02	35~37	-	-	Bal.

 

Grade	C	Si	Mn	P	S	Ni	Cr	Cu	Fe
Mn72Ni10Cu18	≤0.05	≤0.5	Bal.	≤0.02	≤0.02	9~11	-	17~19	≤0.8

Typical Physical properties

Density (g/cm3)	7.7
Electrical resistivity at 20ºC(ohm mm^2/m)	1.13 ±5%
Thermal conductivity, λ/ W/(m*ºC)	6
Elastic Modulus,  E/ Gpa	113~142
Bending K / 10^-6 ºC^-1(20~135ºC)	20.8
Temperature bending rate  F/(20~130ºC)10^-6ºC^-1	39.0%±5%
Allowable temperature (ºC)	-70~ 200
Linear temperature (ºC)	-20~ 150

Application: The material is mainly used as Non magnetic non matching ceramic sealing material in Gyro and other electric vacuum devices.

Style of supply

Alloys Name	Type	Dimension
200	Strip	W= 5~120mm	T= 0.1mm